body{
	font-family: sans-serif;
	background: url('http://wallpapercave.com/wp/sW4JXl5.jpg');
	background-size: cover;
	width: 100%;
	margin: 0 auto;
}
.header{
	width: 60%;
	margin: 0 auto;
	text-align: center;
	color: #fff;
}